Power-propelled boat



Oct. 6

Filed April 17. 1922 INVENTORS:

I ATTORNEY.

Patented a. 6, 1925.

Y liable to become deranged or requlre repairs,

improved toy boat structure, and also inis a fra invention, on an enlargedscale; Fig. 4 is. a.

fragmentary top plan of the boat and.itsj'.

"UNITED STATES PATENT oFncE.

CHARLES a. .uenuga Ann nunwaan 8. arms, or nimarur'oms, nmuna.

rowmrnorannnn roar.

.lpp11oation filed April 17, 1922. Serial in. $58,620.

To all whom it may concern:

Be it known that we, CHARLES J. MOHUGH and DURWARD S. RIvEas', citizens of the United States, residing at Indianapolis, in the county of Marion and State of Indiana,

have invented a new and useful Power-Pro-v pelled Beat, of which the following is a specification, reference being. had to the accompanying drawings and to the letters and figures of reference marked thereon. This invention relates to toy similarvessels designed to float in water, and has reference more particularly to means for propelling such water-craft.

An object of the invention is toprovide an improved toy boat which shall be so constructed as to resemble a motor boat "propelled by an explosion engine, and to 1n'1itate such motor boat in operation without requiring engine machinery or mechanism having movable parts entailing structural cost and repair expenses.

Another object-1s to provide 951 improved toy boat which shall be of such design as to permit of manufacture at small cost, and which shall be educational and attractive and be safe and eflicient in operation.

A further object is to provide an improved apparatus for the 1propulsion of toy boats in waterwhich shal be suggestive of an explosion engine in appearance'and operation, and free from complications and not and which shall be adapted to be simply and easily operated and be durable and economical in use. Y With the above-mentioned and other objects in view, the invention consists in cer-' tain novel pro elling apparatus constructed in imitation 0 an exploslon engine and having novel features of construction, and i-n a side elevation of an im roved toy boat.

provided with the improve ropellin systern; Fig. 2 is atop plan of l ig. 1; l ig. 3

entary, longitudinal sectional elevation il ustrating important'featur'es of the Fig; 5 is a transverse section boats" and and over each towards the other,

. havin to hold onthe line V-'-V in Fig. 3. I

In the different figures of 'the drawings, similar reference characters indicate like elements or features of construction herein.

referred to in detail. I

An embodiment of the invention in .a preferred form comprises a boat hull which has a keel 1 bottom portions 2 and 3, main s1de portions 4 and 5, a bow 6, and a stern 7 provided with a suitable rudder8, all preferably composed of metal.

approximately A boiler or a pair of boilers and what may i be termed engines are provided and arranged so as to operate most advantageously for the purposes. intended. Theboilers preferably comprise,fire-box side leg sheets or plates 9 and 10 that are inclined each towards the other, their lower edges being suitably s aced. apart and having crown sheet p01t10I1S'11 and 12 extendin upward therefrom and each towards the ot er, from which vertical plates 13 and 14 extend respectively. Outer leg sheets or plates 15 and 16 are arranged outside and beyond the fire-box 'sheets respectively and are connected thereto bymeans of bottoms 17 and 18 respectively, curved top portions 19 and 20 extending upwardly from theouter lates designed to imitate an explosion engine crankcase from which extend uprlght ing side members 21 and 22 respectively that '8,!,6 fluted 'to imitate or suggest explosion engine cylinders, other side members .23 and 24 extending upward therefrom and being sha ed in imitation of valve chests, constituting shell portions ofvboilers heads 25 and 26- respectively so as water in the main portion, and heads 27 and 28 to hold water and steam in the upper portion or engine, the engine portion of the boilers having tops 29 and 30 respectivel to prevent the escape of steam.

Preferab the'tops are covered-by means of a cap '31 aving an inclined ridge 32 there ,on in imitation of a water circulating conduit, the cap extending over and coveAring the heat space whichis formed betwee the plates 13 and 14'. Deck plates 33 and 34 are arranged between the main portion 4 and the plate 15, and the main portion 5 and the plate 16, respectively, the deck plates preferably being perforated. A transverse .part1tio'nal plate is arranged forward of the boiler and engine and an apertured partitional wall plate 36 is arranged behind the boiler and engine. A deck plate 37 is arranged in the rearward portion of the hull and has side portions 38 and 39 that extend forward to the partition 36. The bottoms 17 and 18 of the boilers preferably rest on the bottom portions 2 and 3 of the hull or are located in proximity thereto, to insure ample capacity for water in the boilers. Two conduits 40 and 41 are connected to the side members 23 and 24 respectively so as to have communication with the upper portion of the boilers and incidentally with the valve chest portions of the engine, and they extend rearwardly in imitation of exhaust pipes and thence downwardly in the hull and outwardly through the sides of the hull, and have outer portions 42 and 43 respectively that extend rearwardly adjacent to the stern of the boat and preferably extending upwardly. 7

Provision is made for conveniently heating water in the boilers, heat being applied under the crown portions of the fire-box by means of a reservoir or fount comprising two side walls or plates 44 and 45 con nected together and extending upward d1- vergently so as to constitute a narrow bottom, end members 46 and 47 and a top 48 preferably provided with a burner tube 49, if liquid fuel is preferred, through which a wick 50 extends to conduct alcohol or other suitable liquid to the upper end of the wick where combustion occurs, the burner tube being relatively near to one end of the reservoir. The top 48 has a filling tube 51 adjacent to the opposite end of the reservoir and it has a perforated cap 52 thereon. The reservoir is arranged so as to be guided partly by the fire-box walls 9 and 10, and the reservoir has guide plates 53 and 54 arranged rearward of the lower portion thereof that are supported and guided on the bottom portions 2 and 3 respectively of the hull, the plates 53 and 54 belng connected together behind the reservoir and extending rearward therefrom, being secured at the rear end 47 and braced by means of a stairway 55.

A suitable cabin 56 is arranged on the slde portions 38 and 39 of the deck, and preferably the roof of the cabin has an extension 57 connected to the partition 35 from which acforward deck 58 extends so as to cover the bow portion of the hull.

\Vhen a reservoir requires to be supplied with fuel the cabin is lifted from place so that the filling tube 51 becomes accessible; and when the wick needs trimming the reservoir may be drawn rearward slidingly until the wick can be reached through the opening in the deck. The boilers may be supiplied with water at any time by holding the boat in proper position and pouring the water into the conduits, and obviously each boiler may be provided with a filling hole which must be tightly sealed after supplying the boiler with water.

In practical use a flame is produced at,

the top of the wick 50, some of the "heat passing up into the space between the engine portions of the boilers resulting .in the conversion of some of the water into steam which rises into the upper portion of the boilers. The steam passes out through the conduits and on coming into contact with the cool water in which the boat is floating rapidly condenses and causes a partial vacuum in the conduits, the action being independent in the different conduits,with the result that water is drawn in through each conduit and meets the'hot water in the boiler in which reaction occurs, so that while the partial vacuum exists the heated water expands and drives out the water from the conduit, followed by hotvapor 'or steam which condenses when coming into contact with the water as before. The complete cycle is repeated indefinitely until the heat becomes exhausted. The water is drawn from all angles into the ends ofthe termi-. nals 42 and 43 of the conduits and does not affect the movement of the boat, but the chargeof water is forced out from each conduit in a solid stream with great force into the surrounding water in which the boat is floating. which forces the boat forward. The pulsations in operation cause the boiler to vibrate, especially the straight or plane parts 13 and 14, as diaphragms, being composed of thinsheet metal, producing sounds similar to the sounds of the exhausts from an explosion engine. The charges forced out from the conduits, especially when'the terminals 42 and 43 extend upwardly, cause waves on the surface of the water, as indicated by a broken line on Fig. 1. When it is desired to discontinue operations the reservoir may be drawn rearward to permit the flame to be blown out, and the boiler will remain charged with water ready to resume operation when desired.

Having thus described the invention, what is claimed as new is:

1. A power-propelled boat including a right upper portions, portions of the outersid'es of the upper .portlons of the boilers being vibratory, two pipes connected with the upper'portions of the boilers respectively and extending downwardly and rearwardly in the hull and divergently out through the sides of the hull, the pipes having portions outside the hull extending rearwardly and upwardly, ranged between the lower portions of the boilers and having a wick-fed burner on the topthereof. I

3. A power-propelled boat including a hull, two boilers having lower side portions arranged upon the bottom of the hull and extending upwardly each towards the other, each boiler having an upright upper portion spaced apart each from the other, the adjacent side walls of the upper portions being vibratory, the outer walls of the upper portions having fluted portions twopipes connected with the upper portions of the outer walls of the boilers respectively and extending downwardly in and rearwardly through the hull, and a fuel reservoir movably guided upon the bottom of the hull between the lower side portions of the boilers and having burner on the top thereof.

4. A toy boat comprising a hull with a stern, two transverse walls'in the forward portion of the hull, a fore deck connected to the forward one of the transverse walls and to the bow of the hull, an aft deck connected to the stern portion of the hull and having narrow side portions extending to the rearward one ofthe transverse walls, a cabin reinovably supported on the aft deck against the rearward one of the transverse walls, two boilersarranged in the hull between the transverse walls, the lower portions of the and-a fuel reservoir movably ar-- boilers being spaced apart and having crown portions together forming an arch, a reservoir in the lower portion of the hull and partially under the crown portions of the boiler and partially under the cabin, the forward portion of the top of the reservoir having a burner thereon and the rearward portion having a filling tube, and two pipes connected with the upper portions of the boilers respectively and extending through the rearward one of said walls and through the cabin and downwardly and rearwardly in the hull, the pipes having portions extending out through opposite sides respectively of the hull and thence rearward outside the hull,

, 5. In a boat-propelling apparatus, the combination with a hull, of a pair of boilers arranged in the hull and comprising each an inner wall and an outer wall and heads connected 'to the walls, the lower portions of the walls being secured to the opposite sides of the hull and inclined and curved to extend'over towards those of the other boiler, the upper portions of the walls being vertical, each of the boilers having a vibratory wall portion, vertical walls being spaced apart and the space being provided with a cover, two pipes connected with the upper portions of the boilers respectively and extending rearwardly through the hull, and a fuel reservoir movably guided in the hull and having a burner arranged between the lower portions of the, boilers.

In testimony whereof, we aflix our signatures. Y

' CHARLES J. MQHUGH. DURWARD s. RIVERS.

portions of the inner 

